LED state |
Description |
Power (green) |
System status (green) |
Fault (amber) |
Off |
(any) |
(any) |
Power is not being provided by any power supply unit (PSU) in the enclosure, or power is coming
from the battery in the canister.
If at least one PSU is powering the enclosure, the canister or the enclosure midplane might be
faulty.
If both node canisters in an enclosure indicate this state at the same time, it is more likely
that the enclosure midplane is faulty. Follow Procedure: Reseating a node canister to reseat any node canister in this state. If the condition persists,
follow Replacing a node canister if just one
canister is affected, or Replacing a control enclosure midplane if both canisters are affected.
|
Blinking slowly |
Power is available, but the canister is powered off. (The main CPU is not running.)
To restart the node canister, follow Procedure: Reseating a node canister.
|
Blinking fast |
The node canister is performing self test during start up.
Wait for the canister to complete its start up sequence.
|
On |
Off |
Off |
The node canister is in standby mode. (The Storwize V3500
machine code is not running.)
It is safe to remove or reseat the canister.
To restart the node canister, follow Procedure: Reseating a node canister.
|
Blinking |
The node canister is in candidate state. The node is not performing I/O in the system.
Unless indicated by the battery status LED (see Table 4), it is safe to
remove or reseat the canister.
If the node state is candidate and the system is running on the other node canister, the
candidate node is automatically added to the system.
If both node canisters are in candidate state, determine whether you need to recover the system
or create a new system.
|
Blinking fast |
There is a code update in progress.
The canister must not be removed. No user action is required.
|
On |
The Storwize V3500
machine code is running, and the node
canister is participating in the system.
The canister must not be removed.
This is the normal operational LED state.
|
Off |
Blinking |
The node canister is in standby mode. (The Storwize V3500
machine code is not running.)
It is safe to remove or reseat the canister.
|
Blinking |
The Identify function for this canister has been activated. To determine if it
is safe to remove the canister, use the management GUI or service assistant to turn off the
Identify function, then check the node canister status LEDs again. |
Blinking fast |
The Identify function for this canister has been activated. There is a code update in progress.
The canister must not be removed.
|
On |
The Identify function for this canister has been activated.
To determine if it is safe to remove the canister, use the management GUI or service assistant to turn off the
Identify function, then check the node canister status LEDs, again.
|
|
Off |
On |
The Storwize V3500
machine code is not running. The BIOS might
have detected a fault.
It is safe to remove or reseat the canister.
Try reseating the canister following Procedure: Reseating a node canister. If the canister still shows this fault follow Replacing a node canister.
|
Blinking |
The node is in service state.
It is safe to remove or reseat the canister.
Refer to Table 4 to determine whether the battery charge is insufficient.
Use the service assistant to identify any node errors or refer to Procedure: Fixing node errors to determine what to do.
If the node is able to communicate with the configuration node, there might also be an error
alert in the system event log, in which case you should run the associated fix procedure.
|
Blinking fast |
The node is in service state.
There is a code update in progress.
The canister must not be removed.
No action is required until the code update
completes.
|
|
|
On |
The Storwize V3500
machine code is running but there might be an
error alert in the event log, such as error code 550.
The canister must not be removed.
If possible, go to the management GUI and run
the fix procedure for the error alerts listed there. If this is not possible, refer to the service
actions for node error 550.
|